Plastering vs. Drywall: A Beginner’s Guide to Wall Finishing

 

When you walk into a room, your eyes may not immediately notice the walls, but your brain does. Smooth, even surfaces, crisp corners, and a texture that just feels right, wall finishing is not just about looks. It is the layer that ties your entire space together.

 

Whether you are renovating a hundred-year-old home or building from scratch in the burbs, the decision between plaster and drywall is one that pops up sooner than most expect. And it matters, not just for how your place looks, but for how it performs. Think soundproofing, moisture resistance, durability, and even how easy it is to hang a picture without wrecking the whole thing.

 

This guide from Melbourne plasterer is for homeowners figuring out renovations, DIY types getting their hands dirty, and anyone curious about what actually goes on behind the paint. We will explain wall finishing, unpack the differences between plaster and drywall, and help you decide what is best for your space.

 

Understanding Wall Finishing

 

Wall finishing is the final layer that covers your walls and ceilings, but do not think of it as just a pretty face. It is doing a lot more than sitting there looking neat.

 

First, it protects the structural elements underneath, whether that is brick, timber framing, or steel studs. Second, it helps with insulation and soundproofing. Third, it gives your room its finished look, smooth, textured, matte, glossy, painted, or wallpapered. And lastly, depending on the material, it can actually support the structure around it (especially in older builds where solid plaster adds heft).

 

Here is a quick list of what is commonly used:

• Plaster (gypsum, lime, cement, or clay)

• Drywall (a.k.a. plasterboard or gypsum board)

• Wood panelling

• Cement sheeting (in wet areas)

• Render (mainly for exteriors)

 

Why does it matter what you choose? Because not all finishes are created equal. A home finished with traditional plaster often feels more solid and insulates better. But it also takes longer and costs more. Drywall, on the other hand, is quicker and easier to install and ideal for most modern homes.

 

The kicker? Finish choices can affect your property’s resale value and upkeep. A poorly finished wall will show cracks, dents, or moisture bubbles in no time. A well-chosen and well-applied finish? That will stand strong for years.

 

 

Plastering Explained

 

Plastering is one of the oldest wall-finishing techniques in the book. It is been used since ancient times, from Roman villas to Victorian terraces right here in Melbourne. And while the tools and mixes have evolved, the essence remains: applying a paste-like material to a wall or ceiling to create a smooth, solid surface.

 

What sets plastering apart from drywall is that it is more of an art form than an assembly job. Plaster is applied wet, then smoothed over by hand using trowels. Once it dries and sets, it becomes rock-solid. No seams. No joints. Just one continuous surface.

 

Materials Involved

 

The mix depends on the type of plaster being used, but generally includes:

• Gypsum – For smooth finishes, commonly used today

• Lime – Found in heritage homes, breathable and flexible

• Cement – Ideal for strength and moisture resistance

• Sand and Water – Added for body and workability

 

Traditional vs. Modern

 

In older homes, plaster was applied over wooden lath (thin strips of timber). That method is still around for heritage restorations, but these days, plaster is usually applied over a solid surface like brick or plasterboard for speed.

 

Skimming and multi-coat systems are the go-to in modern builds. They allow for faster drying and more efficient layering without losing quality, if done right.

 

Tools and Skills

 

This is not a grab-a-roller-and-go job. Plastering takes experience, steady hands, and a solid understanding of materials. A good plasterer reads the wall like a chef reads dough, adjusting water, heat, pressure, and speed for the perfect result. It is why you will often hear tradies say, “You can spot a bad plaster job a mile off.”

 

 

Types of Plaster

 

Gypsum Plaster

 

This is the go-to for most new builds. It sets fast, is smooth to work with, and is perfect for dry interiors. Most pre-mixed compounds you see at Bunnings? That is gypsum-based. Great for speed and modern style, but not a fan of damp.

 

Lime Plaster

 

Found in older homes and heritage jobs. Lime plaster is breathable, which makes it ideal for walls that need to “breathe”, like sandstone or older brick. It is also flexible, so it can handle minor building movement without cracking. A bit more expensive, but worth it for long-term durability and eco appeal.

 

Cement Plaster

 

Tough as nails. Used in basements, bathrooms, and exteriors. Cement plaster can handle water, weather, and wear. Not as smooth as gypsum, but unmatched for hard-wearing surfaces. Needs careful mixing and timing to get it right.

 

Clay Plaster

 

A niche option gaining traction in sustainable builds. Clay plaster is all-natural, completely recyclable, and brings a lovely, earthy feel. It is more common in green architecture and off-grid homes. Trickier to work with and not ideal for high-moisture areas, but brilliant for the right setup.

 

What Is Drywall?

 

Drywall, also called plasterboard or gypsum board, is the wall finish most modern homes are built with. It is made of a gypsum core sandwiched between two sheets of heavy-duty paper. Lightweight, cost-effective, and easy to install, drywall changed the game in residential and commercial construction.

 

A Quick History Lesson

 

Drywall really took off after World War II. Builders needed a faster way to finish homes for returning soldiers and their families. Plaster was slow and labour-heavy. Drywall panels, on the other hand, could be screwed into place, taped, and painted in a fraction of the time. By the 1950s, it was the new standard across Australia, and it has stayed that way ever since.

 

How It Is Installed

 

Drywall comes in standard sheets (usually 1200mm x 2400mm or larger). It is cut to size using a utility knife or saw, then fixed to wall studs or ceiling joists with screws. Once in place, the joints are taped and covered with joint compound (a.k.a. mud). After it dries, everything is sanded smooth, ready for paint or texture.

Tools used:

 

• Utility knife or drywall saw

• Screw gun or drill

• Joint tape and compound

• Sanding block or pole sander

 

Types of Drywall

 

Not all drywall is the same, and the type you choose matters:

 

• Regular Drywall – Standard gypsum board for dry, low-moisture rooms.

• Moisture-Resistant (Green Board) – For bathrooms, kitchens, and laundries.

• Fire-Resistant (Type X) – Used in garages, units, and between floors.

• Soundproof Drywall – Thicker and layered for noise control.

• Mould-Resistant – Contains special additives to prevent fungal growth.

 

It is not just about picking a board and screwing it in. The right type of drywall can make a big difference in comfort, safety, and longevity. Check out in detail the plasterboard thickness that you can use at your home.

 

 

Plaster vs. Drywall: Head-to-Head Comparison

 

Choosing between plaster and drywall is not just about tradition versus modern convenience, it is about what works best for your space, budget, and timeline. Here is how they really stack up.

 

Installation

 

Drywall wins on speed and ease. Two people can install drywall in a room in a single day, especially with power tools and pre-cut panels. It is DIY-friendly, with loads of online guides and kits available. Plastering, on the other hand, takes skill. It is time-intensive, messy, and usually best left to pros, especially if you want that flawless, glass-smooth finish.

 

Cost

 

Drywall is cheaper, both in material and labour. Repairs are straightforward too: patch, sand, paint. Plaster costs more upfront because of the labour involved and longer drying times. But when done right, it can last longer and hold up better against dents and wear.

 

Finish & Texture

 

Plaster gives you that buttery-smooth, high-end look. It also handles curves, arches, and intricate trims like a dream. Drywall is flat and functional. You can texture it, sure, but it does not have that same depth or character.

 

Durability & Strength

 

Plaster is harder and denser, so it resists knocks and scratches better. But it can also crack over time, especially with shifting foundations. Drywall is softer and more prone to dents, but easier and cheaper to patch up.

 

Sound & Fire Performance

 

Plaster naturally dampens sound and handles heat well. That is why older homes often feel quieter and cooler. Drywall varies depending on type; soundproof and fire-rated boards exist, but they add cost and need proper installation to perform properly.

 

 

Flexibility in Design

 

Got rounded corners, archways, or heritage trims? Plaster is more flexible for detailed work. Drywall prefers straight lines and square edges.

 

Environmental Impact

 

Clay and lime plaster score big on the eco front. Drywall production involves more processing, and while it is recyclable, most off-cuts end up in landfills. Plaster’s longevity also means fewer repairs over time.

 

Repair & Maintenance

 

Drywall wins here, minor damage is a quick patch job. Plaster repairs take time, matching old finishes can be tricky, and you will likely need a skilled hand.

 

Feature Comparison Table

 

Feature	Plaster	Drywall
Installation Time	Slow, skilled work	Fast, DIY-friendly
Labour Intensity	High	Low
Cost (Material + Labour)	Higher	Lower
Finish Quality	Smooth, premium	Smooth but flat
Design Flexibility	Excellent for curves/arches	Basic straight lines
Durability	Very strong, harder to damage	Softer, easier to dent
Sound Insulation	Naturally better	Varies by board type
Fire Resistance	Good with lime or cement	Needs a fire-rated board
Environmental Impact	Low (lime/clay options)	Moderate
Repair Ease	Harder to repair	Easy and quick to patch

 

Pros and Cons Summary

 

Not every home or budget needs the same thing. Here is a no-spin breakdown of what each option brings to the table.

 

Plaster: Pros & Cons

 

Pros:

 

• Solid feel – Adds weight and a quality finish you can see and feel.

• Better sound insulation – Great for bedrooms, studies, or multi-res living.

• Last decades – When done right, it is built to outlast most fixtures.

• Custom design friendly – Handles curves, arches, and heritage trims with ease.

• Eco-smart options – Lime and clay plasters are breathable and sustainable.

 

Cons:

 

• Takes time – Not ideal if you are in a rush.

• Needs a pro – DIY is not really an option unless you have training.

• Cracks with movement – Especially in older homes or on shifting ground.

• Tougher to repair – Matching the texture and blend is an art.

 

Drywall: Pros & Cons

 

Pros:

 

• Fast install – Ideal for builds on a deadline.

• Affordable – Lower material and labour costs across the board.

• DIY-ready – Easy to learn with the right tools.

• Simple to repair – Small damage is usually a same-day fix.

• Different board types – Moisture, fire, and sound-rated options available.

 

 

Cons:

 

• Prone to dents – Especially in high-traffic areas or with young kids.

• Hollow sound – Unless insulated or doubled up.

• Moisture-sensitive – Needs proper protection in wet zones.

 

When to Use Plaster vs. Drywall: Real-World Scenarios

 

The best material often depends on the job, the space, and how much time and budget you have. Here is where each option shines.

 

Use Plaster When:

 

• Restoring a heritage home – Lime plaster matches the original feel, breathes naturally, and is often council-compliant.

• Chasing a luxury finish – Plaster brings a depth and smoothness that drywall cannot match.

• Soundproofing matters – Think music rooms, shared walls, or upstairs bedrooms.

 

Use Drywall When:

 

• Speed and simplicity matter – Tight timeline? Drywall will get you over the line faster.

• DIY is on the cards – Hanging, taping, and patching drywall is the homeowner-friendly choice.

• You expect changes later – Need access behind walls or plan future home plastering renovations? Drywall is easier to remove, replace, and rework.

 

Use Both Strategically:

 

• High-end living area with plaster, utility rooms in drywall.

• Plaster where performance or finish is the priority. Drywall is where practicality wins.

• This combo saves money while still delivering on quality where it counts.

 

Longevity, Repairs, and Maintenance

 

Common Issues

 

Plaster tends to crack over time, especially in homes with shifting footings or heavy vibration. Water damage is another headache. Once plaster absorbs moisture, it can bubble or crumble and needs to be cut out and redone.

 

Drywall gets dents and holes from doorknobs, kids, or furniture bumps. Joint cracks can also appear if not taped or finished properly. In wet areas, poor ventilation can lead to mould behind the board.

 

Repair Process

 

Plaster repairs need a skilled hand. You cannot just smear filler and hope for the best. Matching texture, curing times, and blending old with new takes patience and experience.

 

 

Drywall repairs are simpler. You can cut out a damaged section, screw in a patch, mud it over, sand, and repaint, all without calling in a pro (most of the time).

 

Maintenance Tips

 

• For plaster: Watch for cracks early. Fill them before they spread. Avoid hanging heavy items without proper wall anchors.

• For drywall: Use corner guards in busy areas. Paint with mould-resistant products in bathrooms. Keep an eye on humidity levels to prevent internal damage.

 

With the right care, both options can last the life of your home.

 

Cost Comparison Breakdown

 

When weighing up plaster and drywall, cost is often the dealmaker or dealbreaker. But it is not just about the upfront spend. You need to look at the full picture.

 

Materials Cost

 

Drywall usually costs between $10–$15 per square metre supplied and installed. Plaster (depending on the type and technique) can climb to $30–$50 per square metre. That jump comes from both the material and the skill involved.

 

Labour Differences

 

Plastering is an art. You are paying for someone with years of hands-on experience, not just anyone can deliver a crack-free, mirror-smooth finish. Drywall, on the other hand, is more forgiving. Plenty of capable DIYers can handle installation with the right tools and a bit of research.

 

Long-Term Value

 

Here is where things balance out. Plaster may cost more upfront, but it also tends to last longer, resist knocks better, and hold its finish for decades. Drywall is cheaper to install but can dent, crack, or bubble, which means more patches and paint over time.

 

Hidden Costs to Watch

 

• Waste: Drywall off-cuts often end up in landfills. Plaster mixes can be made to size.

• Repairs: Plaster needs specialist tools and time. Drywall is quicker to fix, but frequent.

• Insurance: Some insurers favour fire-rated drywall for garages and units.

• Renovation Complexity: Cutting into plaster for rewiring or plumbing is messier and riskier.

 

If you are looking at cost alone, drywall wins. But if you are playing the long game or aiming for premium, plaster might be worth every cent.

 

Aesthetic and Design Considerations

 

Your wall finish plays a big part in how your space feels. Smooth walls, crisp corners, a certain depth of texture, these are the details that set a space apart.

 

 

Surface Appearance

 

Plaster delivers a rich, smooth, seamless surface. It reflects light beautifully and gives that luxury feel, especially in living rooms or formal areas. Drywall is flatter and more uniform, but can be textured if needed.

 

Paint & Wallpaper

 

Both materials can handle paint and wallpaper. Plaster holds paint better over time and is less prone to bubbling, while drywall may need sealing first, especially after repairs.

 

Design Styles

 

• Modern / Minimalist – Drywall fits the brief: clean, simple, straight lines.

• Heritage / Rustic – Plaster wins here with its ability to curve, form niches, or carry period mouldings.

• Luxury Builds – Plaster all the way.

• Rental or Fast Flips – Drywall makes more sense.

 

Design Flexibility

 

Got curved walls, arched doorways, or custom niches? Plaster bends literally to your vision. Drywall can do it, but it takes more effort and does not always look natural.

 

Conclusion: Choose What Works for Your Space

 

At the end of the day, there is no one-size-fits-all when it comes to wall finishing. Plaster brings depth, durability, and a touch of class, perfect for heritage restorations or custom builds. Drywall is quick, clean, and cost-friendly, ideal for modern homes, DIY projects, or fast turnarounds.

 

Think about your project goals. Are you building for the long haul or looking to get it done fast? Do you want a premium finish and texture, or straight-up functionality? Your timeline, budget, and design taste should drive the decision.

 

Still unsure? Have a chat with a professional. They can look at your space, budget, and needs, and guide you in the right direction.

 

Need help figuring out the best finish for your home? Get in touch with a local plastering expert. A smart finish now can save years of hassle later.